Air purifier user interface



FIG. 1 is a top, rear and side perspective view of a first embodiment of an air purifier user interface showing our new design;

FIG. 2 is a rear elevational view of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 3 is a front elevational view of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 4 is a side elevational view of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 5 is an elevational view of another side of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 6 is a top plan view of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 7 is a bottom plan view of the first embodiment of the air purifier user interface shown in FIG. 1;

FIG. 8 is a top plan view of a second embodiment of the air purifier user interface shown in FIG. 6; the other views of the second embodiment are duplicative of the perspective, rear, front, sides, and bottom views of the first embodiment;

FIG. 9 is a top plan view of a third embodiment of the air purifier user interface shown in FIG. 6; the other views of the third embodiment are duplicative of the perspective, rear, front, sides, and bottom views of the first embodiment; and,

FIG. 10 is a top plan view of a fourth embodiment of the air purifier user interface shown in FIG. 6; the other views of the fourth embodiment are duplicative of the perspective, rear, front, sides, and bottom views of the first embodiment. 

CLAIM The ornamental design for an air purifier user interface, as shown and described. 